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Control system: single chip and push buttons.
Electrode material: platinum (Pt) purity≥ 99%
Electrode size: (2mm±0.1mm)×(5mm±0.1mm)×(40mm±5mm),
length≥12mm, Angle of chisel-edged: 30°±2°
Electrode distance: 4.0mm±0.1mm, angle: 60°±5°
Electrode pressure: 1.00±0.05N
Electrode voltage: 100~600V
Height of the drops: 35mm±5mm adjustable
Size of drops: 20 drops: 0.380g~0.480g, 50 drops:
0.997g~1.147g
Interval of the drops: 30s±5s, 50 drops: 24.5min±2min
Test solutions resistance
Solution A: 0.1%NH4Cl, 3.95±0.05Ωm, solution B: 1.7±0.05Ωm
Number of drops: 0~9999 (presettable, record and display)
Test wind speed: 0.2m/s
Short circuit current drop: 1.0A±0.1A drop 10%
Leakage indicator: 0.50A±10% , 2.00s±10%
Thermal radiation baffle: Automatic masking
Safe operation interface: automatically power off upon open
the glass window
Standard: IEC60112, UL746A, ASTM D 3638-92, DIN 53480
Working studio: 0.5m3 ( customizable 0.1m3, 0.5m3 or 0.75m3
according to different standard), exhaust hole: Φ100mm
Outer dimension: 600mm (W)*500mm (D)*1000mm (H)
Working Power: 220V/50-60Hz, 0.6KVA
The tracking index test is an accelerated experiment to simulate the conductive substances deposited on the surface of the solid insulating material of household appliances, and assess if conducting paths formed gradually will cause the creepage on the surface of insulating materials, breakdown short circuit and fire hazard
The tracking index test apparatus is a equipment designed to conduct the tracking index testing, and can meet the test requirements of IEC60112, UL746A, GB.T4207, GB4706.1 and TMD 3628-92. On the surface of the solid insulating material, a certain voltage is applied between the platinum electrodes (2 mm × 5 mm) , and drops the pollution liquid (0.1% NH4CL) with specified droplet volume in fixed height (35mm) for 30s to evaluate the resistance of the surface of solid insulating materials under the combined action of electric field and contaminated medium, and its Comparative tracking index (CTI) and proof tracking index (PTI) are determined.
This equipment is controlled by single chip and push buttons. The test apparatus is built-in air exhaust, the front panel is transparent for easy observation of the experimental process.
Proof Tracking Index (PTI): the voltage value of the material subjected to 50 drops of electrolyte without electrical tracking, the unit is volt.
Comparative Tracking Index (CTI): The highest voltage value at which the surface of the material can withstand 50 drops of electrolyte without forming electrical tracking, the unit is volt.
